Paleoheterodonta

Paleoheterodonta
Anodonta anatina
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Subclass: Paleoheterodonta
Orders

Trigonioida
Unionoida

Paleoheterodonta is a subclass of bivalve molluscs.[1] It contains the extant orders Unionoida (freshwater mussels) and Trigonioida. They are distinguished by having the two halves of the shell be of equal size and shape, but by having the hinge teeth be in a single row, rather than separated into two groups, as they are in the clams and cockles.[2]

Contents

2010 Taxonomy of the Paleoheterodonta

In 2010 a new proposed classification system for the Bivalvia was published in by Bieler, Carter & Coan revising the classification of the Bivalvia, including the subclass Paleoheterodonta.[3]

Subclass: Paleoheterodonta

Order: Trigonioida[4]

Order: Unionoida[5]

References

  1. ^ Paleoheterodonta Newell, 1965.  Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=382253 on 9 July 2010.
  2. ^ Barnes, Robert D. (1982). Invertebrate Zoology. Philadelphia, PA: Holt-Saunders International. p. 340. ISBN 0-03-056747-5. 
  3. ^ Bieler, R., Carter, J.G. & Coan, E.V. (2010) Classification of Bivalve families. Pp. 113-133, in: Bouchet, P. & Rocroi, J.P. (2010), Nomenclator of Bivalve Families. Malacologia 52(2): 1-184
  4. ^ Trigonioida Newell, 1965.  Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=382254 on 3 February 2009.
  5. ^ Unionoida Stoliczka, 1871.  Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=160326 on 3 February 2009.